Question

Mr. Tullbane is painting the outside of his house one weekend. He is using his 20 foot ladder for the job, which is currently resting 16 feet up the side of the house. What is the distance from the house to the base of the ladder?

Answer 1

Answer:

12

Step-by-step explanation:

Formula:        $a^{2}$+$b^{2}$=$c^{2}$

Substitute:   $16^{2}$+$b^{2}$=$20^{2}$

Solve:        256+$b^{2}$=400

                -256       -256

                      $\sqrt{b^{2}$ =  $\sqrt{144}$

                           b=12